Provision (Benefit) for Income Taxes Tax Provison (Benefit) Table (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Current :
Federal	$ 35	$ 1
State	6	0
Total	41	1
Deferred:
Federal	127	237
State	25	46
Total	152	283
Less: Provision (benefit) for income taxes	$ 193	$ 284